From 235e6c554b4788e191171d0fabb1165bbe6b1828 Mon Sep 17 00:00:00 2001
From: Fabian Reinartz <fab.reinartz@gmail.com>
Date: Fri, 1 Apr 2016 10:35:00 +0200
Subject: [PATCH] Use ContainsRune

---
 promql/lex.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/promql/lex.go b/promql/lex.go
index 5d390ca11..743a528d6 100644
--- a/promql/lex.go
+++ b/promql/lex.go
@@ -341,7 +341,7 @@ func (l *lexer) ignore() {
 
 // accept consumes the next rune if it's from the valid set.
 func (l *lexer) accept(valid string) bool {
-	if strings.IndexRune(valid, l.next()) >= 0 {
+	if strings.ContainsRune(valid, l.next()) {
 		return true
 	}
 	l.backup()
@@ -350,7 +350,7 @@ func (l *lexer) accept(valid string) bool {
 
 // acceptRun consumes a run of runes from the valid set.
 func (l *lexer) acceptRun(valid string) {
-	for strings.IndexRune(valid, l.next()) >= 0 {
+	for strings.ContainsRune(valid, l.next()) {
 		// consume
 	}
 	l.backup()